BIXOLON SRP-350 PlusA User manual

Service Manual

SRP-350

Thermal Printer

Rev. 3.02

http://www.bixolon.com

Rev. 3.02

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SRP-350

■ Table of Contents

1. Precaution Segment....................................................................................................................................5

1-1 Safety Precautions...................................................................................................................................5

1-2 Servicing Precaution................................................................................................................................6

1-3 Precaution for Electrostatically Sensitive Devices (ESDs) ......................................................................7

1-4 Operational Precautions ..........................................................................................................................7

2. Installation and Operation ..........................................................................................................................8

2-1 Installation................................................................................................................................................8

2-1-1 AC Adapter Installation .....................................................................................................................8

2-1-2 Interface Cable Installation ...............................................................................................................8

2-1-3 Cash Drawer Cable Installation ........................................................................................................ 8

2-1-4 Paper Roll Installation .......................................................................................................................8

2-1-5 Wall Mount Installation...................................................................................................................... 9

2-2 Operation ...............................................................................................................................................11

2-2-1 Setting the DIP switches .................................................................................................................11

2-2-2 Setting the DIP switch (RS-232C Serial Interface) .........................................................................11

2-2-3 Setting the DIP switch (IEEE1284 Parallel, USB Interface) ...........................................................12

2-2-4 Hexadecimal Dumping....................................................................................................................13

2-2-5 The self Test Mode .........................................................................................................................13

3. Product Specifications..............................................................................................................................15

3-1 Appearance............................................................................................................................................15

3-1-1 Printer Dimensions (mm) ................................................................................................................15

3-1-2 AC Adapter Dimensions (mm) ........................................................................................................15

3-1-3 Feature Locations ...........................................................................................................................16

3-2 General Specifications...........................................................................................................................17

3-3 Thermal Printer Specifications............................................................................................................... 17

3-3-1 Printer Specification ........................................................................................................................17

3-3-2 Character Specification...................................................................................................................18

3-3-3 Paper Specification .........................................................................................................................18

3-3-4 Reliability and Environment Specification.......................................................................................18

3-3-5 Printable Area .................................................................................................................................18

3-3-6 TPH (Thermal Printer Head) Specification .....................................................................................19

3-3-7 Other Component Specification......................................................................................................19

3-4 SMPS Specifications .............................................................................................................................20

3-4-1 SMPS (Switching Mode Power Supply) Specification .................................................................... 20

3-4-2 SMPS Output Connector ................................................................................................................20

3-5 Interface Specifications..........................................................................................................................21

3-5-1 RS-232C Serial Interface ................................................................................................................21

3-5-2 RS-485 Serial Interface................................................................................................................... 23

3-5-3 IEEE1284 Parallel Interface............................................................................................................24

3-5-4 USB Interface..................................................................................................................................26

3-6 Cash Drawer Specifications...................................................................................................................27

3-6-1 Cash Drawer Cable......................................................................................................................... 27

3-6-2 Cable Connection ...........................................................................................................................27

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4. Hardware ....................................................................................................................................................28

4-1 Wiring Diagram ......................................................................................................................................28

4-2 Block Diagram........................................................................................................................................29

4-3 Special Circuit Descriptions ...................................................................................................................30

4-3-1 Power Circuit...................................................................................................................................30

4-3-2 RESET Circuit.................................................................................................................................31

4-3-3 Buzzer and Cash Drawer Circuits...................................................................................................32

4-3-4 I/F PBA Detect Block Diagram........................................................................................................ 33

4-3-5 RS-232C Communication Block Diagram....................................................................................... 34

4-3-6 RS-485 Communication Block Diagram .........................................................................................35

4-3-7 Parallel Communication Block Diagram .........................................................................................36

4-3-8 USB Communication Block Diagram ..............................................................................................36

4-3-9 DIP Switch Circuit ...........................................................................................................................37

4-3-10 Thermal Printer Head Circuit ........................................................................................................38

5. Disassembly and Assembly .....................................................................................................................39

5-1 Case-Lower block ..................................................................................................................................39

5-2 Case Upper block ..................................................................................................................................41

5-3 Frame block ...........................................................................................................................................44

6. Adjustments and Maintenance.................................................................................................................47

6-1 Adjustment ............................................................................................................................................. 47

6-1-1 Remaining Roll Paper Adjustment..................................................................................................47

6-1-2 Paper Jam.......................................................................................................................................48

6-2 Maintenance ..........................................................................................................................................49

7. Troubleshooting ........................................................................................................................................50

7-1 Power Problem ......................................................................................................................................50

7-2 System Problem.....................................................................................................................................51

7-3 Panel PBA and Sensor Problem............................................................................................................52

7-4 Thermal Printer Head and Feed Motor Problem ................................................................................... 53

7-5 Auto Cutter and Drawer Problem...........................................................................................................54

7-6 Dip S/W and I/F PBA Select Problem....................................................................................................55

7-7 RS-232C Serial Communication Problem .............................................................................................56

7-8 RS-485 Serial Communication Problem................................................................................................57

7-9 IEEE-1284 Parallel Communication Problem........................................................................................58

7-10 USB Communication Problem ............................................................................................................. 59

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■ About

About this Manual

This Service Manual describes how to perform hardware service maintenance for the BIXOLON SRP-350

Receipt Printer.

Notes

Notes may appear anywhere in the manual. They draw your attention to additional information about the item.

Precaution symbols

Indicates a Safety Precaution that applies to this part component.

Indicates the part or component is an electro-statically sensitive device. Use caution when handling

these parts.

Copyright

This Manual may not, in whole or in part, be copied, photocopied, reproduced, translated or converted to any

electronic or machine readable from without prior written permission or BIXOLON Co., Ltd.

■ Overview of this Receipt Printer

This System Receipt Printer is a microprocessor-based system, using a 16 bit-microprocessor.

This Service Manual provides the technical information for many individual component systems, circuits and

gives an analysis of the operations performed by the circuits. If you need more technical information, please

contact our service branch or R&D center. Schematics and specifications provide the needed information for

the accurate troubleshooting.

All information in this manual is subject to change without prior notice. Therefore, you must check the

correspondence of your manual with your machine. No part of this manual may be copied or reproduced in

any form or by any means, without the prior written consent of BIXOLON Co., Ltd.

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SRP-350

1. Precaution Segment

Follow these safety, servicing and ESD precautions to prevent damage and to protect against potential

hazards such as electrical shock.

1-1 Safety Precautions

1. Be sure that all of the built-in protective devices are replaced. Restore any missing protective shields.

2. When reinstalling the chassis and its assemblies, be sure to restore all protective devices, including

nonmetallic control knobs and compartment covers.

3. Make sure that there are no cabinet openings through which people - particularly children - might

insert fingers and contact dangerous voltages. Such openings include excessively wide cabinet

ventilation slots and improperly fitted covers and drawers.

4. Leakage Current Hot Check:

WARING: Do not use an isolation transformer during this test.

Use a leakage-current tester or a metering system that complies with American National Standards

Institute (ANSI C101.1, Leakage Current for Applications), and Underwriters Laboratories (UL Publications

UL1410, 59.7).

With the unit completely reassembled, plug the AC line cord directly into a 100VAC or 240VAC outlet of the

Adaptor.

With the unit’s AC switch first in the ON position and then OFF, measure the current between a

known Earth ground (metal water pipe, conduit, etc.) and all exposed metal part, including: metal cabinet,

frame, and screw-heads and printer. The current measure should not exceed 0.1 milliamp. Reverse the

power-plug prong in the AC outlet and repeat the test.

5. Design Alteration Warning:

Never alter or add to the mechanical or electrical design of the Receipt Printer. Unauthorized alterations

might create a safety hazard. Also any design changes or additions will void the manufacture’s warranty.

6. Components, parts and wiring that appear to have overhead or that are otherwise damaged should be

replaced with parts that meet the original specifications. Always determine the cause of damaged or

overheating and correct any potential hazards.

7. Observe the original lead dress, especially near the following areas: sharp edges, and especially the AC

and high voltage supplies. Always inspect for pinched, out-of-place, or frayed wiring.

Do not change the spacing between components and the printed circuit board. Check the AC power cord

for damage. Make sure that leads and components do not touch thermally hot parts.

8. Product Safety Notice:

Some electrical and mechanical parts have special safety-related characteristics, which might not be

obvious from visual inspection. These safety features and the protection they give might be lost if the

replacement component differs from the original-even if the replacement is rated for higher voltage,

wattage, etc.

Components that are critical for safety are indicated in the circuit diagram by shading,

( )or ( ). Use replacement components that have the same ratings, especially for flame resistance

and dielectric strength specifications. A replacement part that does not have the same safety

characteristics as the original might create shock, fire or other hazards.

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SRP-350

1-2 Servicing Precaution

WARNING 1: First read the Safety Precaution section of this manual. If some unforeseen

circumstance creates a conflict between the servicing and safety precautions,

always follow the safety precaution.

WARNING 2: An electrolytic capacitor installed with the wrong polarity might explode.

1. Always unplug the unit’s AC power cord from the AC power source or the Power Switch off before

attempting to:

(a) Remove or reinstall any component or assembly,

(b) Disconnect an electrical plug or connector,

(c) Connect a test component in parallel with an electrolytic capacitor.

2. Some components are raised above the printed circuit board for safety.

An insulation tube or tape is sometime used. The internal wiring is sometimes clamped to prevent contact

with thermally hot components. Reinstall all such elements to their original position.

3. After servicing, always check that the screws, components and wiring have been correctly reinstalled.

Make sure that the portion around the serviced part has not been damaged.

4. Check the insulation between the blades of the AC plug and accessible conductive parts.

(example: metal panels and input terminals).

5. Insulation Checking Procedure:

Disconnect the power cord from the AC source and turn the power switch ON. Connect an insulation

resistance meter (500V) to the blades of the AC plug. The insulation resistance between each blade of the

AC plug and accessible conductive parts (see above) should be greater than 1 mega-ohm.

6. Never defeat any of the B+ voltage interlock. Do not apply AC power to the unit (or any of its assemblies)

unless all solid-state heat sinks are correctly installed.

7. Always connect an instrument’s ground lead to the instrument chassis ground before connecting the

positive lead; always remove the instrument’s ground lead last.

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SRP-350

1-3 Precaution for Electrostatically Sensitive Devices (ESDs)

1. Some semiconductor (solid state) devices are easily damaged by static electricity. Such components are

called Electrostatically Sensitive Devices (ESDs); examples include integrated circuits and some field-

effect transistors. The following techniques will reduce the occurrence of component damaged caused by

static electricity.

2. Immediately before handling any semiconductor components or assemblies, drain the electrostatic charge

from your body by touching a known earth ground. Alternatively, wear a discharging wrist-strap device.

(Be sure to remove it prior to applying power-this is an Electric shock precaution.)

3. After removing an ESD-equipped assembly, place it on a conductive surface such as aluminum foil to

prevent accumulation of electrostatic charge.

4. Do not use freon-propelled chemical. These can generate electrical charges that damage ESDs.

5. Use only a grounded-tip soldering iron when soldering or unsoldering ESDs.

6. Use only an anti-static solder removal device. Many solder removal devices are not rated as anti-static;

these can accumulate sufficient electrical charge to damage ESDs.

7. Do not remove a replacement ESD from its protective package until you are ready to install it.

Most replacement ESDs are packaged with leads that are electrically shorted together by conductive foam,

aluminum foil or other conductive materials.

8. Immediately before removing the protective material from the leads of a replacement ESD, touch the

protective material to the device will be installed.

9. Minimize body motions when handling unpacked replacement ESDs. Motions such as brushing clothes

together, or lifting a foot from a carpeted floor can generate enough static electricity to damaged an ESD.

1-4 Operational Precautions

1. The hitting element of the printer mechanism’s thermal head and the driver IC are easily damaged.

Never allow these components to come into contact with metal or other hard objects.

2. Never touch the printer mechanism’s heating element with your hand. Doing so can damage the heating

element and affect proper operation.

3. The head and motor areas are very hot during and immediately after printing. Do not touch components

in these areas directly with your hand.

4. Do not use any paper other than these specified in this manual otherwise print head reliability and print

quality are affected adversely.

5. Thermal paper starts to color at around 70ºC. Take care to protect unused and printed thermal paper

against the affects of heat, light and characters on the paper to feed.

6. Take the roll paper out of the printer when you will not use the printer for a long time in a high

temperature and humidity environment.

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SRP-350

2. Installation and Operation

2-1 Installation

2-1-1 AC Adapter Installation 2-1-2 Interface Cable Installation

Figure 2-1 AC Adapter Installation

1. Mack sure the printer is turned off with the

side of the switch.

2. Plug the DC cord connector into the power jack

on the printer. (Plug the flat side down)

3. Plug the AC Adapter power cord into the wall

outlet.

2-1-3 Cash Drawer Cable Installation

Figure 2-2 I/F Cable Installation

1. Turn off the printer, host ECR and Computer.

2. Plug RS-232, RS-485, USB or Parallel Cable connector

into the I/F connector on the printer.

3. Tighten the screws on both sides of the connector.

4. Turn on the printer, host ECR and Computer.

2-1-4 Paper Roll Installation

Figure 2-3 Cash Drawer Cable Installation

1. Turn the printer off.

2. Plug the Cash Drawer cable connector into

the connector on the printer.

(To remove the Cash Drawer cable, press

the clip on the connector, grasp the connector

and pull it out.)

Figure 2-4 Paper Roll Installation

1. Open the cover printer and remove the used

paper roll core if there is one.

2. Load the paper roll on the paper holder as

shown.

3. Close the cover printer.

Cash Drawer

Connector

Cash Drawer Cable

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2-1-5 Wall Mount Installation

1. Press the Push Button. After opening the cover,

insert the Wall-Guide L , R to the Upper-Left Hole

and the Upper-Right Hole inside of the printer.

2. Remove the three screws from the bottom of the

Case-Lower. Separate the Case-Lower from the

Main Body.

3. Attach the Plate-Spring to the right side of Frame-Body

and tighten a screw.

4. Check whether it works properly by pressing the Push

Button after tightening the screw.

5. After assembling the Plate Spring, the height will be 7~10[mm] when pressing the Push Button. If no problem

Re-assemble in the reverse order.

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6. After assembling the Case-Lower to Set Body, turn the

Set over and attach the BRKT Hanger to the Case Lower

then tighten four screws.

7. Attach the BRKT Mount to the wall firmly with the eight

screws. Be sure that the BRKT attached properly to

match the direction of arrow. And the BRKT Mount

should be always fixed vertically.

8. Insert the BRKT Hanger of Set to the BRKT Mount.

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SRP-350

2-2 Operation

2-2-1 Setting the DIP switches

The DIP switches are located on the bottom of the printer. The DIP switches are used to set the printer to perform various

functions. Follow these when changing DIP switches setting:

1. Turn the printer power switch off.

2. Remove the screw on the bottom of the printer and open the

bracket.

3. Flip the DIP switches using tweezers or another marrow-ended

tool. Switches are in when up and off when off down.

4. The new setting takes effect when you turn on the printer.

※ Note : Always change DIP switch settings only when the

printer is turned off. Change made with the power on

have no effect and then on again.

Figure 2-5 Setting the DIP switches

2-2-2 Setting the DIP switch (RS-232C Serial Interface)

• DIP Switch 1

SW Function ON OFF Default

1 Auto Line Feed Always enabled Always disabled OFF

2 Reserved - - OFF

3 Handshaking XON/OFF DTR/DSR OFF

4 Word length 7 bits 8 bits OFF

5 Parity check Yes No OFF

6 Parity selection EVEN ODD OFF

7 ON

8

Baud rate selection Refer to the Following Table 1

OFF

• DIP Switch 2

SW Function ON OFF Default

1 Code Page Selection Refer to the Following Table 3 OFF

2 Internal bell control Internal bell disable Internal bell enable OFF

3 Auto Cutter Selection Disable Enable OFF

4 Code Page Selection Refer to the Following Table 3 OFF

5 OFF

6

Select Print Density Refer to the Following Table 2

OFF

7 Near End Sensor Status Disable Enable OFF

8 Code Page Selection Refer to the Following Table 3 OFF

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SRP-350

2-2-3 Setting the DIP switch (IEEE1284 Parallel, USB Interface)

• DIP Switch 1

SW Function ON OFF Default

1 Auto Line Feed Always enabled Always disabled OFF

2 Reserved - - OFF

3 Reserved - - OFF

4 Reserved - - OFF

5 Reserved - - OFF

6 Reserved - - OFF

7 Reserved - - OFF

8 Reserved - - OFF

• DIP Switch 2

SW Function ON OFF Default

1 Code Page Selection Refer to the Following Table 3 OFF

2 Internal bell control Internal bell disable Internal bell enable OFF

3 Auto Cutter Selection Disable Enable OFF

4 Code Page Selection Refer to the Following Table 3 OFF

5 OFF

6

Select Print Density Refer to the Following Table 2

OFF

7 Near End Sensor Status Disable Enable OFF

8 Code Page Selection Refer to the Following Table 3 OFF

• Table 1 – Baud rate (bps) Selection

Transmission speed SW – 7 SW – 8

9600 baud ON OFF

19200 baud OFF OFF

38400 baud ON ON

57600 baud OFF ON

• Table 2 – Print Density Selection

Print Density SW - 5 SW – 6

1 ( Light ) ON ON

2 OFF OFF

3 ON OFF

4 ( Dark ) OFF ON

• Table 3 – Code Page Selection

Code Page SW – 1 SW – 4 SW - 8

PC 437 OFF OFF OFF

PC 737 OFF OFF ON

PC 852 OFF ON OFF

PC 857 OFF ON ON

PC 864 ON OFF OFF

PC 866 ON OFF ON

WPC 1251 ON ON OFF

WPC 1254 ON ON ON

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SRP-350

2-2-4 Hexadecimal Dumping

This feature allows experienced users to see exactly what data is coming to the printer. This can be useful in

finding software problems. when you turn on the hexadecimal dump function, the printer prints all commands

and data in hexadecimal format along with a guide section to help you find specific commands.

To use the hexadecimal dump function, follow these steps :

1. After you make sure that the printer is off. Open the cover.

2. Turn on the printer, while holding down the FEED button.

3. Close the cover, then the printer enters the hexadecimal dump mode.

4. Run any software program that sends data to the printer. The printer will print all the codes it

receives in a two-column format. The first column contains the hexadecimal codes and the second

column gives the ASCII characters that corresponds to the codes.

1B 21 00 1B 26 02 40 40 40 40 . ! . . & . @ @ @ @

02 0D 1B 44 0A 14 1E 28 28 28 . . . D . . . . ( ( (

00 01 0A 41 0D 42 0A 43 43 43 . . . A . B . C C C

Note : A period(.) is printed for each code that no ASCII equivalent.

Note : During the hex dump all commands expect DLE EOT and DLE ENQ are disabled.

5. When the printing finishes, turn off the printer.

6. Turn on the printer and then the hexadecimal model is off.

2-2-5 The self Test Mode

The self-test checks whether the printer has any problem. If the printer does not function properly, contact

your dealer The self-test checks the following :

1. Make sure paper roll has been installed properly.

2. Turn on the power while holding down the FEED button. The self-test begins.

3. The self-test prints the current printer status, which provides the control ROM version and the DIP

switch setting.

4. After printing the current printer status, self-test printing will print the following and pause.

(The PAPER LED light blinks).

SELF-TEST PRINTING.

PLEASE PRESS THE FEED BUTTON.

5. Press the FEED button to continue printing. The printer prints a pattern using the built-in character

set.

6. The self-test automatically ends and cuts the paper after printing the following.

*** COMPLETED ***

The printer is ready to receive data as soon as it completes the self-test.

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SRP-350

(A) Serial Self-Test Sheet (B) Parallel Self-Test Sheet

Figure 3-13 The Self-Test Sheet

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SRP-350

3. Product Specifications

3-1 Appearance

3-1-1 Printer Dimensions (mm)

Figure 3-1 Printer Dimension

3-1-2 AC Adapter Dimensions (mm)

Figure 3-2 Adapter Dimension

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SRP-350

3-1-3 Feature Locations

Figure 3-3 Feature Location

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SRP-350

3-2 General Specifications

Item Description Remark

Product

• SRP-350 : RS-232 Serial Communication

• SRP-350S : RS-485 Serial Communication

• SRP-350P : IEEE1284 Parallel Communication

• SRP-350U : USB Communication

Processor

• MITSUBISHI M16C/62 Group M30624FGFP (16 Bit)

1) Internal ROM Size : 256K Byte

2) Internal RAM Size : 20K Byte

Flash ROM Version

Memory

• RAM

1) SRAM : 1Mbits (KM681000B*1)

2) FLASH RAM : 8Mbits (AM29F800B*1)

Interface Serial

(RS-232C / RS-485)

• Flow Control :

1) DTR / DSR (H/W Flow Control)

2) XON / XOFF (S/W Flow Control)

• Baud Rate : 9600 / 19200 / 38400 / 57600 Bps

• Receive Buffer : 4 Kbytes

• Connector : DB25P Female (I/F PBA Side)

The Flow Control, Baud

Rate, Stop Bit and Parity

are determined by DIP

S/W position.

Interface Parallel

• Mode :

1) Forward Mode : Compatibility Mode

2) Reverse Mode : Nibble / Byte Mode

• Connector : 36 Pin Centronics (Ribbon Type)

USB

• Transfer Type : BULK

• Speed : 12 Mbps (Full-Speed)

• Power : Self-Powered

Printer

• Printing Method : Thermal Line Printing

• Printing Speed : 150 mm/Sec, 46.2 Line/Sec

(Font A,1/6" Feed)

Auto Cutter

• Type : Guillotine

• Cutting Method : 1 Point Partial Cutting

Power Consumption • Approx. 27W (Peak)

AC Adapter

• Input : AC 100V ~ 240V, 50Hz/60Hz

• Output : DC 24V±5%, 2.5A

• Ripple and Noise : ±200mV

Environment

Condition

• Temperature: 0℃ ~ 45℃

• Humidity : 30% ~ 80% RH

Weight • 2.3 Kg (With Packing)

Dimensions(mm) • 145(W) x 195(D) x 146(H)

Table 3-1 General Specification

3-3 Thermal Printer Specifications

3-3-1 Printer Specification

Item Description Remark

Model • SRP-350 (TPH : KF1803-GF14B - ROHM)

Print Method • Thermal Line Printing

Dot Density • 0.141 mm (7.09 Dots/mm)

Printing Direction • Unidirection with friction feed

Printing Width • 72.192±0.2mm, 512 dot Position

Character / Line • 42 (Font A : 12x24)

• 56 (Font B : 9x17 )

Character Spacing • 0.28mm (0.01") (2 dots) (Font A)

• 0.28mm (0.01") (2 dots) (Font B)

Printing Speed • Max. 46.2 Lines / Sec (1/6inch feed)

• Max. 150mm / Sec (5.9" /Sec)

Paper feeding Speed • Approx. 150mm /Sec

Table 3-2 Thermal Printer Specification

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SRP-350

3-3-2 Character Specification

Item Description Remark

• Alphanumeric Characters : 95

• Extended Characters : 128 x 34 Page

(Including one space page)

Number of Character

• International Characters : 32

Character Structure

• 12 x 24 (Font A) (Including 2-dot spacing in horizontal)

• 19 x 17 (Font B) (Including 2-dot spacing in horizontal)

Font A is selected as the default

Table 3-3 Thermal Printer Character Specification

3-3-3 Paper Specification

Item Description Remark

Paper Type • JUJO AF50KS-E

Paper Form • Paper Roll

Paper Width • 80mm(+0,-1), 3.14”(+0,-0.039”)

Paper Roll Size • Max 83mm

Spool Inside Dia. • 12mm (0.47”)

Spool Outside Dia. • 18mm (0.71”)

Table 3-4 Thermal Printer Paper Specification

※ Note : The Following paper can be used instead of the specified paper above.

TF50KS-E : Nippon Paper industries Co., Ltd.

PD 160R : New Oji Paper Mfg, Co., Ltd.

F380 : Kansaki Specialty Paper, Inc. (USA)

3-3-4 Reliability and Environment Specification

Item Description Remark

Life • Mechanism : 15 Million lines

• Head : 1x10

8

Pulses / 100Km

• Auto Cutter : 1,500,000 Cut

MCBF • 37,000,000Lines

Environmental

Temperature

• Operating : 0°C ~ +45°C

• Storage : -10°C ~ +50°C (Except for Paper)

Humidity • 30~80% RH (Operating)

• 10~90% RH (Storage)

; Except for Paper

Table 3-5 Thermal Printer Reliability Specification

3-3-5 Printable Area

The Printer area of a paper with width of 80-1.0mm(3.13”±0.02”) is 72.2±0.2mm(2.84”±0.008”)(512dots) and

The space on the right and left sides are approximately 2.5mm(0.098”).

a

d c e

a = 80-1.0mm (3.13"±0.02")

b = 0.141mm±0.05mm (.056"±.008")

c = 72mm±0.2mm (2.83"±.002")

d = 2.5mm (0.098") Over

e = 2.5mm (0.098") Over

[All the numeric values are typical]

Figure 3-4 Printable Area

b

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SRP-350

3-3-6 TPH (Thermal Printer Head) Specification

Item Description Remark

Heat Element Structure 2 Heaters / Dot

Number of Heat Element 512 Dots

Heat Element Pitch 0.141mm/dot, 7.09Dot/mm (180DPI)

Print Width 72±0.2mm

Average Resistance 650Ω ± 3%

Thermistor

1) Resistance R25 : 30kΩ ± 5% (At 25℃)

2) B Value : 3950K ± 2%

3) Temperature : - 20℃ ~ +80℃

Table 3-6 TPH Specification

Item Maximum Unit Conditions

Print Cycle (S.L.T.) 0.94 ml/Line

Supply Energy 0.315 mJ/Dot

Tsu b= 2 5℃

Supply Voltage 26.4 V Vp < 28.0V (Vp : Peak of VH)

Substrate Temperature 65

℃

Thermister Temperature

Number of Dots to be Energized

simultaneously

256 Dots Note 1

Logic Supply Voltage (Vdd) 7 V Include Peak Voltage of Vdd

Logic input Voltage (Vin) -0.5 ~ Vdd+0.5 V

Table 3-7 TPH Maximum Condition (At 25℃)

3-3-7 Other Component Specification

Item Description Remark

Auto Cutter

• Model : ORC-RUY80 (OHYANE RIKI MFG, Co., Ltd)

• Type : Guillotine Type

• Motor : DC Brush Motor FK-180SH-12280 (Mabuchi Motor)

• Voltage : 24V DC ± 7 %

• Current : 800mA (Average), 1.6A(Peak)

Paper Feed Motor

• Model : PM35L-048 (NMB)

• Type : 4-Phase, 48-Polarity (PM Type Bi-Polar Driver)

• Voltage : 24V ± 10% DC

• Resistance : 20Ω at 25℃ per Phase)

Paper End Sensor • Reflection Type Photo Sensor

Paper Roll Near End Sensor • Reflection Type Photo Sensor

Table 3-8 Other Component Specification

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SRP-350

3-4 SMPS Specifications

3-4-1 SMPS (Switching Mode Power Supply) Specification

Item Description Remark

Input Voltage

• Typical : 115V / 230V AC

• Min : 90V AC

• Max : 264V AC

Input Current • Max : 1.5A (When 120V), 0.75A (When 230V)

In rush Current

• Max : 30A (Peak to Peak) / 115Vac / 25℃

Line Regulation • +24V ± 1%

Load Regulation • +24V ± 5%

Ripple Noise • Peak 200mV

O.C.P

(Over Current Protect)

• 3.0A ~ 6.0A

S.C.P

(Shot Current Protect)

• Fold-Back Method

Table 3-12 Power Adapter (SMPS) Specification

3-4-2 SMPS Output Connector

Pin Number Signal Name

1 +24 VDC

2 GND

3 N.C

Shield Frame GND

Table 3-13 Power Connector Pin Description

Figure 3-5 Power Connector

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BIXOLON SRP-350 PlusA User manual

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